The study of petroleum in both the saturated and unsaturated zones, to better understand the processes that control contaminant behavior, and to use this understanding to estimate the future behavior of the contaminants.

Report of a pilot study to classify vegetation communities in parts of the Smoky Mountains National Park by sampling vegetation in selected areas with information on field methods and data analysis and lists of communities identified.

Information on earthquakes in central California and the San Francisco region with links to four types of field studies, deep seismic investigations, geotechnical investigations, shallow seismic imaging, and airborne geophysical surveys.